The Spring,helical,compression, cataloged under National Stock Number 5360-01-086-3756, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Pti Technologies Inc.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-086-3756 |
| Primary Part Number | 77349 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.519 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 0.355 INCHES MAXIMUM IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.950 INCHES NOMINAL IN |
| Spring Deflection Rate | 5.473 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.437 INCHES NOMINAL IN |
| Coil Quantity | 8 1/2 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 631 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 77349 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 77349 | 3/9 Design control — primary reference Vacco Industries |
| 77349 | 5/9 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
NSN 5360-01-086-3756 is a Spring,helical,compression, manufactured by Pti Technologies Inc., classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-086-3756 has 1 manufacturer part number on file: 77349 (Pti Technologies Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-145-4849. Verify interchangeability with system specifications before substitution.
Key specifications for 77349: Spring Free Outside Diameter: 0.519 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 0.355 INCHES MAXIMUM IN. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.